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Trifluoronitroaromatic · CAS 771-69-7

2,3,4-Trifluoro Nitro Benzene

C6H2F3NO2 Molar mass 177.08 g/mol

The most heavily fluorinated nitroaromatic in our range, supplied by Chelora Chemicals as the Halex fluorination product of 2,3,4-Trichloro Nitro Benzene — an important fluoroquinolone pharmaceutical intermediate — exported from Indonesia with full batch documentation on every shipment.

Identification Sheet REP.
IUPAC name1,2,3-Trifluoro-4-nitrobenzene
CAS number771-69-7
Molecular formulaC₆H₂F₃NO₂
Molar mass177.08 g/mol
AppearanceClear liquid, light yellow to orange
Common synonyms1,2,3-Trifluoro-4-nitrobenzene, 2,3,4-TFNB
Boiling Point92 °Cat 20 mmHg
Specific Gravity1.541at 20 °C
Flash Point≈93 °Cclosed cup
AppearanceClear liquid, light yellow to orangetechnical grade
Physical StateLiquid after melting; solidifies on coolinghandling note
Purity Offered97% / 99%+technical & high-purity
01 / PRODUCT DOSSIER

What 2,3,4-Trifluoro Nitro Benzene is, and why buyers source it

A working overview of the compound's chemistry, how it is reached from its trichloro precursor, and its documented role as a fluoroquinolone antibiotic intermediate.

2,3,4-Trifluoro Nitro Benzene is a benzene ring carrying three fluorine atoms at the 1, 2 and 3 positions and a nitro group at position 4, making it the most heavily fluorinated nitroaromatic in our range. All three fluorines sit on the ring relative to a single nitro group, giving a substitution pattern that mirrors the trichloro starting material it is made from, simply with chlorine replaced by fluorine at every position.

At room temperature it is typically supplied as a clear, light yellow to orange liquid once melted, though it can solidify on cooling depending on ambient conditions. It is only slightly soluble in water but miscible with most organic solvents, and like other nitroaromatics is handled as a material requiring full PPE and MSDS-guided handling rather than a benign commodity liquid.

Where it fits in the synthesis chain

This compound is cited as an important pharmaceutical intermediate feeding fluoroquinolone antibiotic synthesis, in the same downstream family as ofloxacin, levofloxacin, lomefloxacin and rufloxacin, continuing the synthesis chain that begins with its trichloro precursor. It is also used as a research chemical in its own right, including in studies of nitroaromatic biotransformation under environmental (methanogenic) conditions.

Grades we supply

Chelora Chemicals offers 2,3,4-Trifluoro Nitro Benzene in technical grade (≈97% assay) for standard industrial synthesis, and high-purity grade (99%+) for pharmaceutical-intermediate applications sensitive to colour or residual chloride carryover. Both grades are supplied with a batch-wise certificate of analysis.

02 / MANUFACTURING ROUTE

How 2,3,4-Trifluoro Nitro Benzene is made

An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.

2,3,4-Trifluoro Nitro Benzene is manufactured by the Halex (halogen-exchange) fluorination of 2,3,4-Trichloro Nitro Benzene with potassium fluoride, typically in dimethyl sulfoxide (DMSO) with phase-transfer catalysts (such as tetrabutylammonium bromide and tetrabutylammonium fluoride) and the assistance of ultrasound, run at temperatures up to around 120°C. Patent literature reports this route can be driven to very high conversion under optimised conditions.

After the halogen-exchange step, the crude product is separated from residual potassium salts, catalyst and solvent, washed, and distilled to the required purity before packing.

Why phase-transfer catalysis and ultrasound matter here

Displacing three chlorines in sequence with fluoride is considerably more demanding than a single Halex step, since each successive substitution becomes somewhat less favourable as the ring's electronics shift; phase-transfer catalysis and ultrasound assistance are used industrially to drive the reaction to completion at a practical temperature and reaction time.

03 / APPLICATIONS

Industries and processes that use it

2,3,4-Trifluoro Nitro Benzene is consumed mainly as a pharmaceutical intermediate feeding fluoroquinolone antibiotic synthesis, with further volumes going into nitroaromatic research. The fields below account for most of the demand we see through our export desk.

Field 01

Fluoroquinolone Antibiotic Intermediate

An important intermediate feeding fluoroquinolone antibiotic synthesis, in the same downstream family as ofloxacin, levofloxacin, lomefloxacin and rufloxacin.

Field 02

Fine-Chemical & Research Applications

Used as a research chemical in fine-chemical synthesis calling for a heavily fluorinated nitroaromatic building block.

Field 03

Environmental Biotransformation Research

Studied in published research on nitroaromatic biotransformation pathways under environmental (methanogenic) conditions.

Field 04

Specialty Dye & Agrochemical Intermediate Chemistry

Its reduction products are used in some specialty dye and agrochemical intermediate synthesis requiring a trifluorinated aniline building block.

04 / REACTION CHEMISTRY

How the molecule is typically carried forward

The nitro group is the reduction handle, while the three fluorines, each activated to a different degree by their position relative to the nitro group, offer sequential or selective SNAr chemistry. Reaction classes below cover the main ways this material is converted downstream.

Reduction to the Trifluoroaniline

Catalytic hydrogenation converts the nitro group to a primary amine while the fluorines are generally preserved, giving a trifluoroaniline intermediate that continues the fluoroquinolone synthesis chain.

Selective Nucleophilic Aromatic Substitution

Individual fluorines, activated to differing degrees by their position relative to the nitro group, can be selectively displaced by nucleophiles under controlled SNAr conditions, a tool used in building the final antibiotic ring system.

Ring-Closure Chemistry Toward the Antibiotic Core

Later steps in the fluoroquinolone synthesis chain use the activated ring fluorines in a controlled cyclisation sequence to build the characteristic bicyclic quinolone core.

Research Biotransformation Pathways

Under environmental and microbial conditions studied in the research literature, this compound undergoes defluorination and reduction pathways relevant to environmental fate assessment.

05 / RELATED BUILDING BLOCKS

2,3,4-Trifluoro Nitro Benzene against other fluorinated and chlorinated nitroaromatics we supply

Buyers sourcing this trifluoro intermediate often need its trichloro precursor or a less heavily fluorinated relative. A quick reference to what else is on our regular supply list.

ProductCAS NumberCategoryNotes
2,3,4-Trifluoro Nitro Benzene771-69-7Tri-fluoro mono-nitro aromaticThe product on this page — the most heavily fluorinated nitroaromatic in our range.
2,3,4-Trichloro Nitro Benzene17700-09-3Tri-chloro mono-nitro aromaticThe Halex starting material for this product — see its product page.
2,4-Difluoro Nitro Benzene446-35-5Di-fluoro mono-nitro aromaticA less heavily fluorinated relative — see its product page.
2,3,4-Trifluoroaniline3862-73-5Tri-fluoro aromatic amineThe reduced amine form of a related trifluoroaromatic elsewhere in our range — see its product page.

Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide, not a specification sheet, for products other than 2,3,4-Trifluoro Nitro Benzene.

06 / HAZARD & HANDLING

Safety classification at a glance

Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.

H302 / H312 / H332

Harmful if swallowed, in contact with skin or if inhaled.

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H335

May cause respiratory irritation.

PPE Standard

Impervious gloves, splash-proof eye protection and suitable respiratory protection are the baseline for routine handling.

Handling Note

Supplied as a liquid at typical ambient temperature; use closed-system transfer where practical to limit splash exposure.

Environmental Handling

Avoid any release to drains or waterways as a general nitroaromatic precaution.

Signal word

Warning — GHS07 harmful and irritant pictograms apply.

This compound is harmful by all three common exposure routes and causes skin and eye irritation along with possible respiratory irritation; impervious gloves, splash-proof eye protection and suitable respiratory protection are recommended for routine handling. As it is typically supplied as a liquid, closed-system transfer is recommended to limit splash exposure. Full first-aid, storage, spill and PPE guidance is in the MSDS issued with every shipment, and should be read in full before this material is handled.

07 / STORAGE & SHELF LIFE

Keeping it on spec between delivery and use

General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.

Storage TemperatureCool, ambient
ContainerOriginal sealed packaging
Typical Shelf Life24 months, unopened
Keep Away FromStrong oxidizers, strong reducing agents
Beyond Shelf LifeRe-assay before use

Store in a cool, dry, well-ventilated area away from direct sunlight and ignition sources, in tightly closed original packaging, segregated from strong oxidizing and strong reducing materials. Ensure containers are well sealed to prevent vapour loss. If a batch is held past its retest date, re-check assay and colour before use.

08 / PACKING & EXPORT

How it ships from Indonesia

Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.

Standard Packing25 kg / 200 kg drums
Bulk PackingIBC on request
Min. OrderFrom 1 drum
Lead Time3 – 5 weeks
Export TermsFOB · CFR · CIF
09 / QUALITY & DOCUMENTATION

What travels with every batch

Specification is agreed before the purchase order, not discovered on arrival. Every shipment of 2,3,4-Trifluoro Nitro Benzene leaves with a documented, checkable paper trail.

Doc 01

Certificate of Analysis

Batch-wise assay, residual chloride, colour and water content, issued against the agreed specification so your QC team can check it, not just file it.

Doc 02

Safety Data Sheet

GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.

Doc 03

Technical Data Sheet

Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.

Doc 04

Certificate of Origin

Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.

Doc 05

Dangerous Goods Declaration

UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.

Doc 06

Third-Party Inspection

Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.

10 / FAQ

Frequently asked questions

What buyers most often ask our sales desk about this grade.

01What is 2,3,4-Trifluoro Nitro Benzene used for?+
It is an important pharmaceutical intermediate feeding fluoroquinolone antibiotic synthesis (the same downstream family as ofloxacin and levofloxacin), and is also used as a research chemical in fine-chemical and environmental biotransformation studies.
02What is the CAS number of 2,3,4-Trifluoro Nitro Benzene?+
Its CAS Registry Number is 771-69-7, with molecular formula C₆H₂F₃NO₂ and a molar mass of 177.08 g/mol.
03How is 2,3,4-Trifluoro Nitro Benzene made?+
It is made by Halex halogen-exchange fluorination of 2,3,4-Trichloro Nitro Benzene with potassium fluoride, typically in DMSO with phase-transfer catalysis and ultrasound assistance.
04What purity grades does Chelora Chemicals supply?+
We supply technical grade (around 97% assay) for standard industrial synthesis, and high-purity grade (99%+) for pharmaceutical-intermediate applications. Each batch ships with a certificate of analysis.
05Is 2,3,4-Trifluoro Nitro Benzene hazardous?+
Yes. It carries a GHS Warning signal word with hazard statements covering harmful acute toxicity by all three exposure routes, and skin, eye and respiratory irritation. It must be handled with the PPE and precautions specified in the MSDS supplied with each shipment.
06How does this relate to 2,3,4-Trichloro Nitro Benzene?+
This trifluoro compound is made directly from that trichloro precursor via Halex fluorination, which sequentially replaces all three chlorines with fluorine to give the activated fluoroaromatic needed for fluoroquinolone ring-closure chemistry.
07What packing options are available?+
Standard packing is 25 kg or 200 kg drums, with IBC shipment available on request for bulk orders.
08How long does delivery take?+
Typical lead time is three to five weeks plus transit, depending on whether the grade is ex-stock or made to order and your destination port. A firm date is confirmed in the written quotation.
09Can I get a sample before placing a bulk order?+
Yes. Pre-shipment samples and a batch certificate of analysis can be arranged so your QC team can verify the specification before committing to volume.
10Do you supply other fluorinated or chlorinated nitroaromatics?+
Yes, we also supply 2,3,4-Trichloro Nitro Benzene and 2,4-Difluoro Nitro Benzene, and can source other related intermediates on request.
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